| Board of Directors | 1972 – 1990 |
| Board of Directors | 2004 – 2005 |
| Board of Directors | 2003 – 2004 |
| Chairman | 2003 – 2004 |
| Chairman | 2001 – 2003 |
| Chairman | 1972 – 2001 |
| Board of Directors | 1972 – 1989 |
| Board of Directors | 1972 – 2001 |
| Board of Directors | 2001 – 2003 |
| Chairman | 2004 – 2005 |
| Board of Directors | 2003 – 2004 |
| Board of Directors | 1972 – 2001 |
| Board of Directors | 1972 – 1993 |
| Board of Directors | 2001 – 2003 |
| Board of Directors | 2004 – 2005 |